1// SPDX-License-Identifier: LGPL-2.1
2#include <sys/types.h>
3#include <sys/stat.h>
4#include <fcntl.h>
5
6#ifndef O_DIRECT
7#define O_DIRECT 00040000
8#endif
9
10#ifndef O_DIRECTORY
11#define O_DIRECTORY 00200000
12#endif
13
14#ifndef O_NOATIME
15#define O_NOATIME 01000000
16#endif
17
18#ifndef O_TMPFILE
19#define O_TMPFILE 020000000
20#endif
21
22#undef O_LARGEFILE
23#define O_LARGEFILE 00100000
24
25size_t open__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix)
26{
27 const char *prefix = "O_";
28 int printed = 0;
29
30 if ((flags & O_ACCMODE) == O_RDONLY)
31 printed = scnprintf(buf: bf, size, fmt: "%s%s", show_prefix ? prefix : "", "RDONLY");
32 if (flags == 0)
33 return printed;
34#define P_FLAG(n) \
35 if (flags & O_##n) { \
36 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
37 flags &= ~O_##n; \
38 }
39
40 P_FLAG(RDWR);
41 P_FLAG(APPEND);
42 P_FLAG(ASYNC);
43 P_FLAG(CLOEXEC);
44 P_FLAG(CREAT);
45 P_FLAG(DIRECT);
46 P_FLAG(DIRECTORY);
47 P_FLAG(EXCL);
48 P_FLAG(LARGEFILE);
49 P_FLAG(NOFOLLOW);
50 P_FLAG(TMPFILE);
51 P_FLAG(NOATIME);
52 P_FLAG(NOCTTY);
53#ifdef O_NONBLOCK
54 P_FLAG(NONBLOCK);
55#elif O_NDELAY
56 P_FLAG(NDELAY);
57#endif
58#ifdef O_PATH
59 P_FLAG(PATH);
60#endif
61#ifdef O_DSYNC
62 if ((flags & O_SYNC) == O_SYNC)
63 printed += scnprintf(buf: bf + printed, size: size - printed, fmt: "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", "SYNC");
64 else {
65 P_FLAG(DSYNC);
66 }
67#else
68 P_FLAG(SYNC);
69#endif
70 P_FLAG(TRUNC);
71 P_FLAG(WRONLY);
72#undef P_FLAG
73
74 if (flags)
75 printed += scnprintf(buf: bf + printed, size: size - printed, fmt: "%s%#x", printed ? "|" : "", flags);
76
77 return printed;
78}
79
80size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size, struct syscall_arg *arg)
81{
82 int flags = arg->val;
83
84 if (!(flags & O_CREAT))
85 arg->mask |= 1 << (arg->idx + 1); /* Mask the mode parm */
86
87 return open__scnprintf_flags(flags, bf, size, show_prefix: arg->show_string_prefix);
88}
89

source code of linux/tools/perf/trace/beauty/open_flags.c